Description: A keystroke is a single press of a key on a keyboard, relevant in the context of data entry through a WAN. This concept is fundamental in the interaction between the user and the system, as each press can trigger a specific action, such as entering text, commands, or navigating digital interfaces. Keystrokes are essential in communication and information processing, especially in environments where data transmission over wide area networks (WAN) is required. In this context, each press becomes an input element that can be sent across the network, allowing remote interaction with applications and services. The speed and accuracy of keystrokes can influence the efficiency of communication and the user experience, making this a critical aspect in the design of interfaces and data entry systems. Additionally, the ability to record and analyze keystrokes can be used to enhance the security and usability of applications, as well as for data collection in user behavior studies.